net/mlx5e: Infrastructure for duplicated offloading of TC flows

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Under uplink LAG or multipath schemes, traffic that matches one flow
might arrive on both uplink ports and transmitted through both
as part of supporting aggregation and high-availability.

To cope with the fact that the SW model might use logical SW port
(e.g uplink team or bond) but we have two HW ports with e-switch on
each, there are cases where in order to offload a SW TC rule we
need to duplicate it to two HW flows.

Since each HW rule has its own counter we also aggregate the counter
of both rules when a flow stats query is executed from user-space.

Introduce the changes for the different elements (add/delete/stats),
currently nothing is duplicated.

Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Aviv Heller <avivh@mellanox.com>
Signed-off-by: Shahar Klein <shahark@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

...

This commit is contained in:

Roi Dayan 2018-11-11 22:24:03 +02:00 • committed by Saeed Mahameed

parent ac004b8321

commit 04de7dda73

3 changed files with 176 additions and 8 deletions

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174

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

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2

drivers/net/ethernet/mellanox/mlx5/core/eswitch.h

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8

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c

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